Re: [Drbd-dev] [PATCH] drbd: use list_move_tail instead of list_del/list_add_tail

[Philipp Reisner]

Thanks, applied.

Best regards,
 Phil
> From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
> 
> Using list_move_tail() instead of list_del() + list_add_tail().
> 
> spatch with a semantic match is used to found this problem.
> (http://coccinelle.lip6.fr/)
> 
> Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
> ---
>  drivers/block/drbd/drbd_worker.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/block/drbd/drbd_worker.c
> b/drivers/block/drbd/drbd_worker.c index 6bce2cc..a196281 100644
> --- a/drivers/block/drbd/drbd_worker.c
> +++ b/drivers/block/drbd/drbd_worker.c
> @@ -141,8 +141,7 @@ static void drbd_endio_write_sec_final(struct
> drbd_epoch_entry *e) __releases(lo
> 
>  	spin_lock_irqsave(&mdev->req_lock, flags);
>  	mdev->writ_cnt += e->size >> 9;
> -	list_del(&e->w.list); /* has been on active_ee or sync_ee */
> -	list_add_tail(&e->w.list, &mdev->done_ee);
> +	list_move_tail(&e->w.list, &mdev->done_ee);
> 
>  	/* No hlist_del_init(&e->collision) here, we did not send the Ack yet,
>  	 * neither did we wake possibly waiting conflicting requests.
> 
> 
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